get 2 massive wound channels per hit.
Posted: Sun, 09 Oct 2016 10:10:50
My split Nose design of handgun bullet is a solid copper hp, weighing 45 grs. It has a massive, conical hollowbase cavity and the center of the long axis is slit, from the nose almost to the bottom of the base cavity. It impacts of over 2000 fps, the bullet splits in half lengthwise, sending 2 sharp cornered "hard" (relative to lead) unstable segments yawing and tumbling thru the target. The wound tracks diverge, get 8-9" of penetration in animal chests. (3" barreled 9x21mm Kimber Micro 9, range 10 yds or so) Because of the 2200 fps impact speed, the temporary gas cavities are capable (and do) cause damage to fragile organ tissue. So the effect is a wound 3/4" x 1.5" (average) 9" deep. Such rds are also fully AP on Threat Level III concealable armor.
Until I get the company up and running, you'll have to make your own split Nose's. It's easily done with a vise, a $15 handheld grinder from Harbor Freight, $40 of micrometer, a $20 handheld electric drill, and a file. Simply chuck up a short piece of copper rod in the drill. Hold a file or the Dremel cut off disks (3 disks on the mandrel) to get close to the OD of the finished bullet. Then use crocus cloth folded around the file to finish said OD. Use the dremel and file to create the nose-shape, hp and hb cavities. Then use the little exacto saw to slit the bullets from the nose almost to the hb cavity. Measure the depth of the cut, keep going until the paper target shows the bullet coming apart in mid air. Then reduce the depth of your saw kerf by .020".
A cheap, easy way to make 45 gr test bullets for the 9mm is to melt the lead cores out of 115 gr bullets (ball or jhp, doesn't matter) and replace the lead with Epoxy. Alliant Bullseye is the only powder with enough "octane" to work the slide. The amounts of Bullseye are staggering to the uninformed. Like 6.0 grs or more. But so are the velocities you'll see on your chronograph. Hug a tree while firing your "work up" loads, wear heavy gloves and leave out the magazine. Work up half a grain at a time, looking for pressure signs and checking to see if you got a corresponding increase in velocity. If you did not, stop, back off to the last load! that's your safe maximum charge with that bullet.
Until I get the company up and running, you'll have to make your own split Nose's. It's easily done with a vise, a $15 handheld grinder from Harbor Freight, $40 of micrometer, a $20 handheld electric drill, and a file. Simply chuck up a short piece of copper rod in the drill. Hold a file or the Dremel cut off disks (3 disks on the mandrel) to get close to the OD of the finished bullet. Then use crocus cloth folded around the file to finish said OD. Use the dremel and file to create the nose-shape, hp and hb cavities. Then use the little exacto saw to slit the bullets from the nose almost to the hb cavity. Measure the depth of the cut, keep going until the paper target shows the bullet coming apart in mid air. Then reduce the depth of your saw kerf by .020".
A cheap, easy way to make 45 gr test bullets for the 9mm is to melt the lead cores out of 115 gr bullets (ball or jhp, doesn't matter) and replace the lead with Epoxy. Alliant Bullseye is the only powder with enough "octane" to work the slide. The amounts of Bullseye are staggering to the uninformed. Like 6.0 grs or more. But so are the velocities you'll see on your chronograph. Hug a tree while firing your "work up" loads, wear heavy gloves and leave out the magazine. Work up half a grain at a time, looking for pressure signs and checking to see if you got a corresponding increase in velocity. If you did not, stop, back off to the last load! that's your safe maximum charge with that bullet.
